MY166519A - Method for producing high purity silicon - Google Patents

Method for producing high purity silicon

Info

Publication number
MY166519A
MY166519A MYPI2012000613A MYPI2012000613A MY166519A MY 166519 A MY166519 A MY 166519A MY PI2012000613 A MYPI2012000613 A MY PI2012000613A MY PI2012000613 A MYPI2012000613 A MY PI2012000613A MY 166519 A MY166519 A MY 166519A
Authority
MY
Malaysia
Prior art keywords
silicon
high purity
producing high
aqueous solution
leaching step
Prior art date
Application number
MYPI2012000613A
Inventor
Khalil Zeaiter
Original Assignee
Elkem Solar As
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elkem Solar As filed Critical Elkem Solar As
Publication of MY166519A publication Critical patent/MY166519A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/02—Silicon
    • C01B33/037—Purification
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/02—Silicon
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)

Abstract

THE PRESENT INVENTION RELATES TO A METHOD FOR PRODUCING HIGH PURITY SILICON COMPRISING PROVIDING MOLTEN SILICON CONTAINING 1-10% BY WEIGHT OF CALCIUM, CASTING THE MOLTEN SILICON, CRUSHING THE SILICON AND SUBJECTING THE CRUSHED SILICON TO A FIRST LEACHING STEP IN AN AQUEOUS SOLUTION OF HCI AND/OR HCI + FECI3 AND TO A SECOND LEACHING STEP IN AN AQUEOUS SOLUTION OF HF AND HNO3. THE LEACHED SILICON PARTICLES IS THEREAFTER SUBJECTED TO HEAT TREATMENT AT A TEMPERATURE OF BETWEEN 1250°C AND 1420°C FOR A PERIOD OF AT LEAST 20 MINUTES AND THE HEAT TREATED SILICON IS SUBJECTED TO A THIRD LEACHING STEP IN AN AQUEOUS SOLUTION OF HF AND HNO3.
MYPI2012000613A 2009-09-23 2010-09-09 Method for producing high purity silicon MY166519A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20093054A NO331026B1 (en) 2009-09-23 2009-09-23 Process for producing high pure silicon

Publications (1)

Publication Number Publication Date
MY166519A true MY166519A (en) 2018-07-05

Family

ID=43796046

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2012000613A MY166519A (en) 2009-09-23 2010-09-09 Method for producing high purity silicon

Country Status (10)

Country Link
US (1) US8920761B2 (en)
EP (1) EP2480497B1 (en)
CN (1) CN102369158B (en)
BR (1) BRPI1005443B1 (en)
CA (1) CA2744802C (en)
ES (1) ES2627503T3 (en)
IN (1) IN2012DN01681A (en)
MY (1) MY166519A (en)
NO (1) NO331026B1 (en)
WO (1) WO2011037473A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102642838B (en) * 2012-04-28 2014-10-15 中国科学院福建物质结构研究所 Method for purifying high-purity silicon material by adopting pyrometallurgy and hydrometallurgy collocation technique
US9676632B2 (en) 2012-06-25 2017-06-13 Silicor Materials Inc. Method for purifying silicon
US20150175431A1 (en) 2012-06-25 2015-06-25 Silicor Materials Inc. Method to purify aluminum and use of purified aluminum to purify silicon
NO339608B1 (en) 2013-09-09 2017-01-09 Elkem Solar As Multicrystalline silicon ginger, silicon master alloy, process for increasing the yield of multicrystalline silicon ginger for solar cells
CN106629735B (en) * 2016-12-09 2018-12-04 成都斯力康科技股份有限公司 A kind of intelligent control ingredient separation system suitable for silicon factory
CN110508552A (en) * 2019-09-27 2019-11-29 江苏美科硅能源有限公司 A kind of processing method of the primary silicon material of the attached oxide in surface

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885364A (en) 1955-05-31 1959-05-05 Columbia Broadcasting Syst Inc Method of treating semiconducting materials for electrical devices
IT1100218B (en) * 1978-11-09 1985-09-28 Montedison Spa SILICON PURIFICATION PROCEDURE
CA1147698A (en) * 1980-10-15 1983-06-07 Maher I. Boulos Purification of metallurgical grade silicon
NO152551C (en) * 1983-02-07 1985-10-16 Elkem As PROCEDURE FOR THE PREPARATION OF PURE SILICONE.
US4643833A (en) 1984-05-04 1987-02-17 Siemens Aktiengesellschaft Method for separating solid reaction products from silicon produced in an arc furnace
US4612179A (en) 1985-03-13 1986-09-16 Sri International Process for purification of solid silicon
CA1289333C (en) * 1986-03-07 1991-09-24 Angel Sanjurjo Process for purification of solid material
US5648042A (en) * 1995-10-10 1997-07-15 Centorr/Vacuum Industries, Inc High-temperature belt furnace apparatus and method of using same
NO313132B1 (en) * 1999-12-08 2002-08-19 Elkem Materials Method of purifying silicon

Also Published As

Publication number Publication date
IN2012DN01681A (en) 2015-06-05
NO331026B1 (en) 2011-09-12
CN102369158B (en) 2014-05-14
EP2480497A1 (en) 2012-08-01
CN102369158A (en) 2012-03-07
EP2480497A4 (en) 2016-06-15
BRPI1005443A2 (en) 2016-03-08
US8920761B2 (en) 2014-12-30
CA2744802C (en) 2017-01-03
EP2480497B1 (en) 2017-03-15
US20110250118A1 (en) 2011-10-13
BRPI1005443B1 (en) 2020-08-11
NO20093054A1 (en) 2011-03-24
WO2011037473A1 (en) 2011-03-31
CA2744802A1 (en) 2011-03-31
ES2627503T3 (en) 2017-07-28

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